Dishwasher



May 25,' 1943. f H. H. HoRwrrz l 2,320,133

DISH wAsl-IE'R Filed July 3, 1941 3 sheetssheet 1 I fiyeze fr 17a/raid JY/'fwzzzf 'www Patented May 25, 1943 UNITED. sTATEs DISHWASHER Harold H. Horwitz, Chicago, Ill., assignor to Rose G. Horwitz, Chicago, Ill.

Application July 3, 1941, serial No. 400,905'

- 9 Claims.

My invention relates to improvements in dish washing machines and has forone object to provide a new and improved type of machine which will be portable, light, cheap, simple, which will take up a minimum amount of room when in operation and may be easily stored and which may .-rest upon the usual type of kitchen sink dish Figure 4 is a section along the line 4-4 of 20 Figure 1;

Figure 5 is a section along 'the line 5-'-5 of Figure 4 Figure 6 is a section similar to Figure 1 of a modiiied form. f

Like parts -are indicated by like characters throughout the specification and drawings.

I is the usual form of dish boardfassociated with the conventional kitchen sink, having in its upper surface a plurality of Waterv channels 2. 30

3 is a standpipe 'projecting upwardly from an elbow 4. 5 is a hose pipe connection adapted to be threaded into the horizontal arm of the elbow and 6 is a hose pipe associated with the hose pipe e Y-connection adapted to bring water from any suitable source to the standpipe. 1 is a soap box in the hose pipe, Vhaving removablen cover Ilandwm adapted to contain soap which will be dissolved by the water as it passes toward the standpipe.

9 are legs adapted to rest upon the dish board I 40 and form with the elbow 4 a pedestal or support for the standpipe 3. Y

I0 is a spinner head, taking preferably the form of a T. It rests upon a cap II, threaded on the upper end of the standpipe 3. A-hub I2 is rotat- 45 ably mounted in the cap I I threaded into the stem I3 of the T so that the spinner head is free'to spin but cannot be removed from the standpipe. I4 are hollow coupling plugs threaded in the two branches of the T adapted to encircle the ends of the spray pipe I1. v

The standpipe is in two sections joined by a sleeve I8. Both sections of the standpipe are threaded. Encircling the standpipe 3 below the sleeve I8 is a collar I9 held against the under 55 (Cl. L11- 9) end of the sleeve I8 by-a nut`20 threaded on the standpipe. Projecting laterally from the collar, preferably rigidly attached thereto by brazing, welding, or riveting as the case may be are a plurality of dish rack forming arms 2l. These arms have upwardly inclined U-shaped elements 22 so that dishes may be placed between them as indicated in dotted lines in Figure 1. 23 is a silver basket adapted to be mounted on the guardrails 24. These guardrails encircle the outer periphery of the dish rack and form a unit structure limiting the peripheral area in which the dishes may be placed for reasons which will hereinafter appear. v

The spray pipes I1 are U-shaped in cross section having an upper limb 25, a'lower limb 26 and a central section 21. The upper limb 25 is curved as shown in Figure 4. The central section 21 is rearwardly inclined as shown in Figures 2 and 4, and the lower limb 26 extends inwardly toward the standpipe but trails the upper limb 25 and is inclined to the radius as shown in Figure 4. Each of these three spray pipe extensions has a plurality of inwardly directed spray apertures 28. The spray apertures on the pipe 25 discharging water downwardly, on the pipe 21 discharging water inwardly, on the section 26 discharging water upwardly against the dishV tray and its contents. As indicated in Figures 2 and 1, the spray openings are rearwardly extended so that as water .is projected fromethe sprays, the reaction of the iet will cause the spray pipes and spinnerhead to rotate around the area defined by the dish rack and its guardrails, while the spray jets discharge inwardly. Because of the fact that the lower section trails the upper section of the U- VVshapedspray pipe, the jets are never in opposition to one another so that as the spray pipe passes round and round as shown in Figure 1, the jets from above will engage'v the upper surface of the dishes, the jets from below will engage the lower surface of the dishes. These jets are -thus staggered and do not interfere with one another nor do they interfere with the jets coming radially inward from the portion of the spray placed on the dish board. The pedestal, standpipe, spray pipe and rack assembly is then placed on the dish board substantially concentric with The cover is apertured at 30a to perthe ring 3|. The soap container is illled with soap. The dishes are placed in the basket or rack. The cover is then put on encircling the whole apparatus, there being clearance between the cover and the dish basket or rack to permit passage oi the spray ipes therebetween. Water is then turned on. e spinner is rotated by the reaction oi' the water jets, the soapy water is pro- Jected against the dishes in the dish basket, runs down into the dish board and runs into4 the sink through the grooves 2. 'Ihis process continues until the dishes are clean, when the water is turned oil', the cover is removed, the dishes are taken out of the basket and the apparatus is` ready for reuse or to be put away.

In the modified form shown in Figure 6, there is substituted for the elbow 4 and legs 9,-an overhanging frame structure 32,' in which a onepiece standpipe 33 is rotatably mounted, being encircled and guided by a sleeve 34 which is threaded in the frame 32. The standpipe extends down to terminate in a plate 33 which closes the pipe. This plate is supported by antifriction bearings 36v on the threaded plug 3l. 38 is a stem extending down through the plug 31 from the plate 35 to carry a gear 39. 40 is a water chamber in 'the frame 32 communicating by means of a coupling 4| with the hose-pipe 8. The standpipe 33 is apertured as at 42 so that as it rotates, it is always in connection with the chamber 40. 43 is a T rigidly mounted on the standpipe 33 which supports the spray pipes il just as is shown in Figure 5.

44 is abase on which is mounted a stand 45 which carries an electric motor 46 with a gear reduction 4l driving a pinion 48 in mesh with the gear 39. Extendingupwardly from this base 44 is a cylindrical housing 50 carrying a floor 5I having upwardly extending side walls 52 surrounding the dish basket and the spray -pipes and closed at its upper end by a fiat cover 53 having a handle 54. 55 is an aperture in the floor 5i for the escape of water. 53 is a sleeve extending upwardly from the floor encircling the sleeve 54 to make a substantially water tight connection so that the run oil! water will not reach the motor and driving mechanism, With this arrangement, the only difference from the preferred lform shown in Figures 1 to 5 inclusive is that vth motor rotates the standpipe T or spinner h and spray pipes, the spray water jet itself serving exclusively to wash the dishes and having no propelling function. In this case, a housing or cover is permanently associated with the other elements of the device.

If it should happen that the width of the drain board was less than the diameter of the cover, an auxiliary drain board or plate may be used or on the water driven device of Figure 1, a dervice similar to the receptacle 52 with cover I3 of'sFigure 6 may be used.

Figure 1 shows in combination with a water driven device, a iixed column 3 with the spinner head rotating on it. In the modied form shown in Figure 6, the column rotates. It happens, however, it is associated with the electric motor but obviously a. motor couldbe applied to the device of Figure ,1 and the device of Figure 6 might operate without the motor.

One advantage of using an electric motor is that if desired, spray holes may be added to the rotating column 33.

It will be realized that while I have shown in my drawings Aan operative device, still many changes might be made in the size. shape. ar-

rangement and disposition of parts without de` parting materially from the spirit of my invention and I wish, therefore, that my showing be taken as in a large sense diagrammatic.

I claim:

1. In a dish washer, a standpipe, a dish basket concentric with and supported entirely upon the standpipe, a spinner head on the standpipe above the basket, and a spray pipe extending outwardly from the spinner head to beyond the periphery of the basket, then extending downwardly below the basket and then extending inwardly toward the standpipe, means for supplying water to the standpipe and therethrough and through the spinner head to the spray pipe, the spray pipe having apertures adapted to direct water downwardly, inwardly and upwardly against the basket and its contents, the portion of the spray pipe extending across and above the basket, being curved, the portion of the pipe which extends downwardly about the basket being rectilinear.

2. In a dish washer, a standpipe, a dish basket concentric with and' supported entirely upon the standpipe, a spinner head on the standpipe above the basket, and a spray pipe extending outwardly from the spinner head to beyond the periphery of the basket, then extending downwardly below the basket and then extending inwardly toward the standpipe, means for supplying water to the standpipe and therethrough and through the spinner head to the spray pipe, the spray pipe having apertures adapted to direct water downwardly, inwardly and upwardly against the basket and its contents, the limb of the spray .pipe extending downwardly outside the basket being rearwardly inclined, the lower limb of the spray pipe trailing behind the upper limb, the jets projecting from the upper and lower limbs being parallel but out of alignment with one another.

3. In a dish washer, a standpipe, a dish-basket concentric with and supported entirely upon the standpipe, a spinner head on the standpipe above the basket, and a spray pipe extending outwardly from the spinner head to beyond the periphery of the basket, then extending downwardly below `the basket and then extending inwardly toward the standpipe, means for supplying water to the standpipe and therethrough and through the spinner head to the spray pipe, the spray pipe having apertures adapted to directwater downwardly,`inwardly and upwardly against the basket and its contents, the standpipe having a movable base upon which it is mounted adapted to rest on and be supported by a smooth surface.

4. A dish washer including a pedestal, a standpipe projecting upwardly therefrom, a `hose connection associated with the lower end of the standpipe, a spinner head on the upper end of the standpipe, an open fixed dish supporting rack supported at its center on the standpipe, a guard railing extending upwardly from the outer periphery ofthe rack and encircling it, a generally U-shaped spray pipe extending outwardly from the spinner head, generally horizontally above the rack, the pipe being curved in a horizontal plane, the base of the U extending downwardly andurearwardly outside the guard rail, the lower'limb of the U extending inwardlytoward the standpipe below the rack the lower limb being located behind the curved upper portion of the pipe, spray apertures in the spray pipe discharging, some of them downwardly, some of them inwardly, some of them upwardly from the three portions of the pipe. toward the rack and its contents.

5. A dish washer including a pedestal, a standpipe projecting upwardly therefrom, a hose connection associated with the lower end of the standpipe, a spinner head on the upper end of the standpipe, an open 'xed dish supporting rack supported at its center on the standpipe, a guard railing extending upwardly from the outer periphery of the rack and encircling it, a generally Ushaped spray pipe extending outwardly from the spinner head, generally horizontally above the rack, the pipe being curved in a horizontal plane,

the base of the U extending downwardly and rearwardly outside the guard rail, the lower limb of the U extending inwardly toward the stand-r pipe below the rack behind the curved upper portion of the pipe, spray apertures in the spray pipe discharging.' some of them downwardly, some'of them inwardly and some of them upwardly from the three portions of the pipe toward the rack and its contents, a removable cover for the assembly of such size as to enclose and be out lof contact with the spray pipe and to extend downwardly into the plane of thebase of the stand.

6. A dish Washer including a dish supporting rack, a railing encircling it, a standpipe, a supporting base therefor, the rack being supported 'by the standpipe, a spinner head on the standpipe, a generally U-shaped spray pipe extending laterally from the spinner head above the rack, then downwardly outside the railing, then inwardly below the rack, a removable cover enclosing the entire assembly closed at the top and extending downwardly below. the lowermost portion of the spray pipe and-being' entirely independent of and out of contact with the standpipe andthe rack, the spray pipe having a plurality of A .spray openings, some discharging downwardly,

some inwardly and some upwardly against the dish rack and its contents, means for spinning the spinner and associated spray pipe.

7. A dish washer including a movable supporting pedestal, a standpipe concentric therewith, a hose connectionwith the lower end of the standwith the standpipe, a guard railing extending up wardly from the outer periphery of the rack and encircling it, a generally U-shaped spray pipe supported at its upper end by the spinner head and extending generally horizontally above the rack, the base of the U extending downwardly and rearwardly outside the guard rail.

9. In a dish washer, a standpipe, a dish basket concentric with and supported entirely upon thestandpipe, a spinner head on the standpipe above the basket, and a spray pipe extending outwardly from the spinner head to beyond the periphery of the basket, then extending downwardly below the basket and then extending inwardly toward the standpipe, means for supplying water to the standpipe and therethrough and through the spinner head to the spray pipe, the spray pipe having apertures adapted to directwater downwardly, inwardly and upwardly against the basket and its contents, the upper portion of the spray pipe which extends above and across the basket lying Vin a generally horizontal plane and being curved, the spray pipe including a generally rectilinear section extending downwardly about the exterior of the basket anda 'generally rectilinear section extending inwardly beneath the bottomof the basket. HORWITZ. 

